Ventilator for cars.



No. 663,679. Patented Dec. ll, I900. r W. C. MAR-TIN.

VENTILATOR FUR CARS.

(Application filed Mar. 3, woo.)

(N0 M0deI.-) 2 Sheets8heet l.

WiTNESSES'r- INVENTOR No. 663,679. Patented Dec. ll, I900.

W. C. MARTIN.

VENTILATOR FUR CARS.

(Application filed Mar. 3, 1900.)

(No Model.) 2 Shets-$heet 2.

1 F I v Q II/Im VOWJTNESSES:

UNITED STATES PATENT FFICE.

IVILLIAM CLARENCE MARTIN, OF NEW YORK, N. Y.

VENTILATOR FOR CARS.

SPECIFICATION forming part of Letters Patent No. 663,679, dated December 11, 1900.

Application filed March 3, 1900. b li l 10- 7,1 6- (No model.)

To all whom it may concern:

Be it knownthat I, WILLIAM CLARENCE MARTIN, a citizen of the United States, and a resident of the borough of Manhattan, in the city, county, and State of New York, have invented certain new and useful Improvements in Ventilators for Cars, &c., of which the following is a full and true description, reference being had to the accompanying drawings, illustrating one embodiment of my invention.

Like letters indicate like parts in the several views.

One object of my invention is to provide a device for circulating air within a car or other closed body by means of a fan or other suitable device extending outside of the car or other closed body and operated by the outside air-currents.

A second object of my invention is to provide a ventilator of the class described, especially for cars, with means for turning the outside fan toward either end of the car, as desired, and according to the direction of travel of the car.

A third object of my invention is to provide means for locking the swinging fanframe in any position.

Referring to the accompanying drawings, Figure 1 is a top view of a car provided with a number of my new ventilators. Fig. 2 is a longitudinal section of the upper portion of a car provided with a ventilator. Fig. 3 is a view, inside of a car, of a ventilator in position, showing the handle for swinging the same and the locking means. Fig. 4. is a perspective view of a preferred form of ventilator removed from the car. Fig. 5 is a view of the holder and locking-plate. Fig. 6 is a longitudinal section of the ventilator.

A indicates the lower roof of the car, and B indicates the upper roof. 0 indicates the light-frame of the car.

D is a fan or other suitable device outside of the car and arranged to be rotated by the air-currents striking against the fan-blades.

E is a fan inside of the car and is connected mechanically with the fan D, preferably by a shaft G, to which both fans are fixed. The shaft passes through bearings F F and through the hub H, preferably formed integral therewith.

The hub H is mounted in the side of the car (in thelight-frame, forinstance) by means of upper and lower pivotal projections I and J in a metallic frame N, a suitable opening having previously been out through the wood work.

In Fig. 1 the arrow indicates the direction of travel of the car and the outside fans D are all turned to point in substantially the same direction, and when the car travels in the reverse direction the outside fans are also to be reversed in order that. the air-currents will strike the front of the fan-blades.

In order to swing the outside fan, I provide a handle inside of the car. By preference the said handle K is attached to the hub H at a point below the shaft G and is adapted to act not only as a handle, but also as a lock to prevent the hub from swinging under the strains exerted by the outside fanf For this purpose the hub H is provided with a slot M, and the handle K is pivoted in said slot on a pin M. A flat spring L has one end socured in the metal of the hub and its free end bears down upon the handle K.

The frame N, in which the hub H is mounted, is provided at its lower edge with a cir-.

cut-away parts corresponding to the limit of the swinging movements of the hub.

To swing the hub, it is first necessary to raise the handle K (against the resistance of the spring L) until it clears the upper edge of the rib O and then push the handle along the upper edge of said rib until it reaches the opposite cut-away portion P, into which the spring L forces the handle, thus completing the swinging movement of the hub and looking it in position.

In operation the rotation of the outside fans D will be communicated to the inside fans E, and the rotation of the latter will cause a circulation of the air within the car.

If desired, the blades or operating-surfaces of the outside fan D may, and in most cases should, be larger than the blades of fan E in 2 caew ment herein shown and described. Obviously other forms of fans, (either outside or inside,) mountings, handles, locking devices, 850., may be substituted for those shown and still be within my invention.

What I claim is- 1. In combination with the walls of the upper roof of a car, a fan or fans operated by the air-pressure produced by the car movement and connected to a ventilating fan or fans inside of the car, mechanical connections between the outside and inside fans,

stantially as and for the purpose described.

2. In combination with the walls of the upper roof of a car, a fan orv fans operated by the air-pressure produced by the car movement and connected to a ventilating fan or fans inside of the car, mechanical connections between the outside and inside fans, means within the car, connected to the outside fan and adapted to swing said fan toward either end of the car as desired, and means for locking the same in position, substantially as andfor the purpose described.

3. In'combination with the walls of the upper roof of a car, afan or fans adapted to swing toward either end of the car, and operated by the air-pressure produced by the car movement, a ventilating fan or fans inside of the car, mechanical connections between the outside and inside fans, and means for locking the outside fan in the desired position, substantially as and for the purpose described.

4. In combination with the walls of the upper roof of a car, a hub or other suitable fanframe pivoted to swing, in the said walls of the car, toward either end of the car, a rotatable shaft passing through the fan-frame, a fan mounted on the shaft outside of the car, and a ventilating-fan mounted on the shaft inside of the car, substantially as and for the purpose described.

5-. In combination with the walls of the upper roof of a car, a hub or other suitable fanframe, a rotatable shaft passing through the fan-frame, a fan mounted on the shaft outside of the car, a ventilating-fan mounted on the shaft inside of the car, and means, within the car,-adapted to swing the shaft so as to throw the fans toward either end of the car, substantially as and for the purpose described.

6. In combination with the walls of theupper roof of a car, a rotatable shaft passing through the said walls of the car, a fan mounted on the shaft outside of the car, a ventilating-fan mounted on the shaft inside of the car, and means, within the car, adapted to swing the shaft so as to throw the fans toward either end of the car, substantially as and for the purpose described.

In witness whereof I have hereunto signed my name this 2d day of'March, 1900.

W. CLARENCE MARTIN.

In presence of- JAMES J. OoseRovE, WM. H. BERRIGAN, Jr. 

